Comet Shoemaker-Levy Impact Sites -- Observed at Lick 3 Meter
Shane Telescope July 22, 1994
Images of the A, V, H, N(?), G, R impact sites as they crossed
the face of Jupiter were taken using the high resolution
speckle imaging camera at 550 nm and 850 nm between 05:38 and
06:48 July 22 UT. After speckle image reconstruction, all of
the impact sites appear dark at these wavelengths, and many
are surrounded by ringlike structures that are darker on the
pole side than on the equator side.
Weather conditions at Lick Observatory were very cloudy until
05:30 UT. It cleared up for the rest of the night but seeing
was somewhat worse tonight than previous nights. It appears
that the H impact site has broken or spread into an irregular
shape. The new V spot, although we missed the actual impact
due to clouds, is clearly visible rising over the limb.
First image:
550 +/- 20nm filter
exposure time: 250 ms per frame
20 frames speckle processed
Second image:
850 +/- 20nm filter
exposure time: 650 ms per frame
20 frames speckle processed
Observers:
Claire Max, Don Gavel, Erik Johansson, LLNL
Mike Liu, UC Berkeley
For more information on these images, contact:
gavel1@llnl.gov -- Don Gavel